Machine for taping box-blanks and the like.



G. H. BRODERICK.

MACHINE FOR TAPING B0 X BLANKS AND we um.

APPLICATION FILED AUG.6, I915. 1x1? Patented July 2,1918.

3 SHEETS-SHEET I.

G. H. BRODERiCK.

MACHINE FOR TAPING BOX BLANKS AND THE LIKE.

APPLICATION FILED AUG. 6, 1915.

Patented July 2,1918.

3 SHEETS SHEET 2.

M vemm':

G. H. BRODEFHCK.

MACHINE FOR TAPING BOX BLANKS AND THE LIKE.

APPLlCATiON FILED AUG.6. 1915.

3 SHEETS-SHEET 3.

Mvenmr:

um: ca. PNUTOJ mm. WAsNlNGmnL n c.

Patented J 11137 2, 1918'.

entrain earns rattan GEORGE H. BRODERIGK, 0F LAWRENCE, KANSAS, ASSIGNOJR, TO IRVING- HILL, 0F

LAWRENCE, KANSA$.

MAoHInn roa mrinerox-istanks AND 'rnn mm;

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Specification of Letters Patent.

7 Patented July 2, rain.

Application filed August 6, 1915. Serial No. 43,947.

'1 0 all whom it may concern:

Be it known that I, Gnonon I-l. Bnonnnron,

a citizen of the United States, and a resident of the city of Lawrence, county of Douglas, and State of Kansas, have invented certain new and useful Improvements in Machines for .Taping Box-Blanks and the like, of which the following is a specification.

This invention relates to :improvements in machines which are designed to perform or assist in the performance of a series of successive operations upon stock or material in substantially fiat form. More specifically, this invention has in view facilitating the operations of applying gummed or adhesive strips to the meeting edges of blanks or sheets of so-oalled paper board, particularly what is known as cellular or double-faced corrugated paper board, which has been so slotted, scored and folded as to be readily formed into a box or cartonwhen opened.

The present invention contemplates further improvements in a machine with which I am familiar and which includes a series of counterbalancing weights, one weight of said series becoming effective, in a counterbalancing'sense, as the weight of the accumulating material on a depressible portion of the table top overcomes the forces of gravity of the counterbalancing weight theretofore efi'ective, thus automatically maintaining a fixed positional relationship between the top blank of the increasing pile thereof and the mechanism for performing the taping or other operation. In view of the fact that for the usual character of the material operated upon, about five blanks are required to overcome each efiective counterbalancing weight, in turn, it will be apparent that when the first of these five blanks is positioned, the forces tending to raise, or opposing downward movement of said depressible portion are substantially greater than when the fourth and fifth blank are being positioned.

While it is essential to hold the top blank of the pile more or less firmly against the guides'or supports in the taping and tapecutting mechanisms, this force should not be sufficient to crush or indent the material which, in the case of cellular or corrugated fiber board, is of a character which makes counterbalancing weights, in turn, are slightly excessive when the first of each set of five blanks were operated upon, in order that said forces might still be suflicient to retain the depressible portion of the table top at a proper point under the additional weight of the other four blanks of the set. The principal object of this invention is the provision of counterbalancing means for automatically retaining the depressible portion of the table top in proper position under the proportionately increasing load of the increasing pile of blanks, which generate effective forces immediately upon the positioning of each blank, instead of when five or more blanks have been positioned, thereby insuring the same pressure, of whatever desired degree, between each top blank, in turn, and the supporting and operating parts of the tape-cutting mechanism. invention also has in view the simplification of machines of this character, generally whereby the same may be wholly self-contained, and thereby readily movable from place to place in its entirety, may bemanufactured and kept in repair at less cost, and is generally more dependable in operation.

My invention will. be more readily understood by reference to the accompanying drawings, forming a part of this specification, in which- I Figure 1 is a perspectiveview of a ma: chine embodying my invention;

Fig. 2 is an enlarged side elevation thereof, with one end broken away, and

Fig. 3 is an end elevation thereof.

Referring now to the drawings in detail, numeral 6 designates the top of a bench or table supported in the usual manner by the legs 7 7. This table-top 6 includes adepressible portion 8, which is of dimensions suflicient to receive and support a pile of blanks of any of the ordinary sizes. This depressible portion 8 is supported by a frame which includes the side bars 9 and 10 with theconnecting bar 11 at one end thereof, the other ends of said side bars 9 and 10 being pivotally mounted upon the rod 12 which is carriedby the arms .13 and 14secured and depending from the fiX'edportion 6 of the table-top. The side bars, 9 and 10 are pivotally connected to brackets ,15 rand The '16, mounted-upon the lower face-of said .de

ts t les a eas itssilppo mg tained a substantially horizontal position,

and to insure such position I provide vertical guides 17 17, in the form of angle bars,

which receive the corners of said depressible portion 8. To the cross 'loar11 of the supportingfraine issecured a cord 18, .which passes around the sheave 19 and which is designed to support said frame and raise and lower the same, and therewith said de pressible table-top portion 8, in the manner hereinafter describe Mounted; upon the table top (3 are the standards 2.0 and 2.0, journaled in the upper ends of which is the shaft 21. Keyed to or otherwise suitably fixed upon this shaft 21 are the sheaves 22 and 23 and the cam-sheave 2. 1. As these sheave-s are designed to oper'ate;-throughout les than one-half of one revolution thereof, the sheaves 22 and 23 are of semi ci'rcular configuration, and. the cord 18, after being passed around the sheave 19, is directed through the groove in the periphery of the sheave 22 and the end thereof suitably secured at the end 25 of said groove. Atone end of the groove in the sheave 23 is secured a cord 26, carrying at its end the weight 27, and as said shaft 21 is rotated against the forces of gravity generated by theweight 27, the cord 26 will be received in] the sheave 23. The periphery of this sheave'23 being circular, the leverage will be constaiit for any position of said sheave, thereby makin constant the forces generated byth'e Weight 27, as augmented by the leverage,- which forces should counterbalance the weight of the depressible table-top portion by itself. I 7; To 0111c end of the groove in the ca1nsheave 24. is similarly secured "a cord 28 can rying the Weight 29. The periphery of this cam-sheave 24 isof such configuration that when the depressifble portion 8 ofthe table top is substantially flush with the fixed portion thereof, the weight 29 hangs substantially directlybelow the axis of the shaft 21, which in this position, as shown in Fig. 3, it ha's; obv'iou'sly'no effect upon said shaft. As the latter starts to rotate, however, under action offthe increasing load upon the depressibl'e table-top portion 8 and consegue'nt movementof'tli'e cord 18 around the sheave 22,not only will the 'forcesof the weight 29 be deflected tofopp'o'se rotation of said shaft 21,b' ut these forces'willbe constantly inc'reas'ed, fas the shaftis rotated under the inereajsii'igwe'ight of material "placed upon the depressible' table-top portion 8 through the constantly increasing: leverage due to the eonfigaration 'of, the portion 30 of the camsheave p riphery:

store if the forces generated by the i '1; bf -deg etccounterbalance fight 0 tl d b'le table-topper:- frame, it will be apparent that the weight 29 will commence to act, under a very slight leverage, as soon as -any load is placed upon said depressiblc table 'top portion, and that said leverage will vary in proportion to the increasing or diminishing weight of said load. 'lhcrefore, the.upwardly-directed forces exerted against said depressible table-top portion 8, to press the topmostblank thereon against the taping and tape-cutting mechanism, will remain uniform irrespective of variations in the weight of the load.

The taping and tape-cutting mechanism, to which I havereferred, in view of the fact that its specific construction and operation form no partof the present invention, need not be described in detail here. Generally speaking, it includes a suitable frame 31 carrying a reel 32 upon which the gunnned tape is wound, the tape from said reel passing underneath the tension bar 32, over the moistening cylinder 33 and the scraper 31'. and between the shearing knives 35 and 36 to the top blank 37 of the pile thereof on the depressible table-top portion 8. The lower knife 36 is fixed, and the upper knife 35 is pivoted to the frame 31 and is provided with an arm which has pivotal connection with the block 37.

To operate the knife 35, I provide the conveniently accessible foot-lever 38, to the rear end of which is secured the cord 39, which passes around the sheave l0 and is secured at its other end to the lever 40 fulcrumed in the standards 41. The other end of the lever 40 is linked to the end of one arm of the bell crank lever 4-2, to the other arm of which is pivoted the connecting rod 43 operating through the arm 41 on the shaft 45 to rotate the latter and thus. through the arm 46, raise the block 37 and operate the knife 35. A spring 47, in tension between the arm and any suitably fixed part of either the table top 6 or the frame 31, retains the knife 35 normally in its elevated position. and the lever 38 in position to be operated for the cutting operation, which, obviously, can be readily performed by the operator at any desired moment.

To retain each blank in a substantially flat condition during the tapingand tape cutting operations, tendencies to warp or become distorted through the inherent rcsiliency of the folded material and hold the meeting edges of the blank, to which the tape is applied, in proper position while the adhesive is setting? 1 provide the bars 48 and {19 provided with the ant -friction ro ls 5'0 and 51, respectively, at the ends thereof. whereby a folded blank may be readily superposed on the pile thereof already taped. in proper position and condition to be operated 1.111011. Thfe bars may be supported in "any desired manner which I referred in the preamble of this specification, the lever 40 was supported from the ceiling of the room or mounted upon some support other than the table it- 'self, whereas in the present invention it is mounted upon the table-top 6, thus making the entire machine more nearly self-contained and capable of ready removal from place to place without entire re-adjustment.

Many modifications of minor details of my improved machine for tapering boX- blanks and the like will doubtless readily suggest themselves to those skilled in the art to which it appertains, and I therefore do not desire to limit my invention to the specific construction herein shown and described.

I claim as new and desire to secure by Letters Patent:

1. In a machine of the character described, the combination, with a table or the like, of a balanced depressible section in the top thereof adapted to receive material thereon, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

2. In a machine of the character described, the combination, with a table or the like, of a depressible section in the top thereof, movable means for supporting said section in a counterbalanced condition, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

3. In a machine of the character described, the combination, with a table or the like, of a balanced depressible section in the top thereof adapted to receive material thereon, means for guiding vertical movement of said section and retaining the same in a horizontal position, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

I. In a machine ofthe character described the combination, with a table or the like, of a depressible section in the top thereof adapted to receive material thereon, means for supporting said section in a counterbalanced condition, means for guiding vertical movement of said section and retaining the same in a horizontal position, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

5. In a machine of the character described, the combination, with a table or the like, of a depressible section in the top thereof adapted to receiv material thereon, a ver tically movable support for said section,

means for counterbalancing the weight of said section and its support, and means for slightly and uniformly overbalancing an in creasing or diminishing load on said section.

6. I11 a machine of the character described, the combination, with a table or the like, of a depressible section in the top thereof adapted to receive material thereon, a vertically. oscilliating frame supporting said section, means for counterbalancing the weight of said section and its supporting frame, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

7 In a machine of the character described, the combination, with a table or the like, of a depressible section in the top thereof adapted to receive material thereon, a vertically movable support for said section, means for counterbalancing the weight of said section and its support, means for guiding vertical movement of said section and retaining same in a horizontal position, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

8. In a machine of the character described, the'combination, with a table or the like, of a depressible section in the top thereof adapted to receive material thereon, a vertically oscillating frame supporting said section, means for counterbalancing the weight of said section and its supporting frame, means for guiding vertical movement of said section and retaining same in a horizontal position, and means for slightly and uniformly over-balancing an increasing or diminishing load on said section.

9. In a machine of the character described, the combination, with a table or the like, of a depressible section in the top adapted to receive material thereon, a vertically oscillating support for said section may be held in a horizontal position in all positions thereof, means for guiding vertical movement of said section and retaining the same in a horizontal position, means for counterbalancing the weight of said section and its support, and means for slightly and uniformly overbalancing an increasing or diminishing load on said section.

In testimony of the foregoing, I have hereunto set my hand in the presence of two Witnesses.

GEORGE H. BRODERICK. Witnesses:

PAUL A. lDiNsMooR, GAIRALD II. GARRETT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

asliinston, n. b. 

